Buffer overflow in Mozilla products - CVE-2026-6786

 

Buffer overflow in Mozilla products - CVE-2026-6786

Published: April 21, 2026


Vulnerability identifier: #VU126677
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-6786
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox ESR
Firefox for Android
Software vendor:
Mozilla

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to memory corruption in multiple browser components when processing crafted web content. A remote attacker can cause the browser to process specially crafted content to execute arbitrary code.

Some of the bugs showed evidence of memory corruption.


Remediation

Install security update from vendor's website.

External links